Reference Architecture: Google Mail MCP
A scoped Gmail MCP server for controlled mailbox operations in automation pipelines.
Context
Mail automation often becomes fragile when one integration tries to do everything.
What this reference shows
- separated Gmail service boundary
- dedicated OAuth and token lifecycle per integration
- explicit tool surface for read, label, archive, and message actions
- environment-driven runtime wrapper for reproducibility
Why it matters
The architecture favors maintainability and risk reduction over broad but unclear integrations.